Manufactured by CHG Bearing, the 2797/2680G is a precision Crossed Roller Slewing Bearings. Key dimensional parameters include a 2680 mm bore diameter, a 3325 mm outer diameter, and a 300 mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
2797/2680G - Crossed Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 2797/2680G |
| Brand | CHG® |
| Gear Type | Gearless |
| Characteristics | |
| Bearing Type | Single-row Crossed Roller Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 2680 mm |
| Width (B) | 300 mm |
| Outer Diameter (D) | 3325 mm |
| Inner/Outer Ring Height H1 | 270 mm |
| End-face Height Difference h | 30 mm |
| Number of Lubrication Holes n1 | 4 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 3242 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2754 mm |
| Lubrication Port Thread / Size Φ1 | 16 |
| Inner Ring Mounting Hole Count n2 | 32 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 33 |
| Outer Ring Mounting Hole Count n3 | 32 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 33 |
| Gear Data | |
| Gear Module m | 16 mm |
| Gear Tip Diameter De | 2592 mm |
| Number of Gear Teeth z | 164 |
| Gear Face Width b | 180 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 3620 kg |
2797/2680G 3325 mm 2680 mm 300 mm 3242 mm 2754 mm Frequently Asked Questions about 2797/2680G Crossed Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing 2797/2680G against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (2680 mm x 3325 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
When fitting 2797/2680G over a 2680 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
To ensure optimum performance of CHG Bearing 2797/2680G Crossed Roller Slewing Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 2680 mm bore. For the 3325 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Absolutely. The CHG Bearing 2797/2680G Crossed Roller Slewing Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 2797/2680G, FAG 2797/2680G, NSK 2797/2680G. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
